Kuretake's Zig Calligraphy Metallic Double-Sided Markers are great for writing beautiful calligraphy and lettering. The shiny metallic colors look beautiful on both light and dark colored papers. You can even create pretty effects by blending the colors of different pens. Just color one pen's tip with another color and you'll see stunning blended color when you write. The pens are perfect for scrapbooking, making cards, and other crafts.